Results 91 to 100 of about 843,741 (156)

Research on the Law of Top Coal Movement and Influence Factors of Coal Caving Ratio for Fully Mechanized Top Coal Caving Working Face

To investigate the movement law of top coal and the influencing factors of coal caving ratio in fully mechanized top coal caving faces, this study adopts the theory of dispersoid mechanics. First, a top coal flow model was established without considering
Kai Guo, Liang Chen, Sheng Lei, Zhiheng Cheng, Jiahui Chen, Zherui Zhang, Jinhu Zhang   +6 more
core   +1 more source

Improving coal recovery from longwall top coal caving

, 2014
This paper develops a series of methodologies to improve the recovery rate from longwall top coal caving. Cavability of top coal is the most essential indicator to estimate the recovery rate.
Apurna Ghosh (20181219), Y. Gong (70953)
core   +1 more source

Three-dimensional void fraction evolution law and sensitivity analysis of mining-induced overburden based on Bertalanffy time function. [PDF]

Sci Rep
Li Z, Zhou N, Lei Y, Yang Q, Li M, Yan H, Li B.   +6 more
europepmc   +1 more source

Mechanisms of stress distribution influenced by numerical model size and goaf parameters in multi-coal seam mining. [PDF]

Sci Rep
Wang N, Paneiro GA, Li Y, Liu Y.
europepmc   +1 more source

Roadway roof shear slip movement mechanism induced by the strong dynamic pressure while ultra-thick coal seam mining. [PDF]

Sci Rep
Liu C, Wang F, Zuo Y, Wang C, Gao C, Lu Y, Sun W, Hao W, Tang T, Zhang Y.   +9 more
europepmc   +1 more source

Influence mechanisms of rock mass discontinuity density on mining-induced land subsidence. [PDF]

Sci Rep
Pan W, Gong Y, Deng W, Guo G, Wan Y, Khan NM.   +5 more
europepmc   +1 more source

Multi-Source Sensing of Overburden Movement, Surrounding-Rock Failure Evolution, and Mine-Pressure Response Mechanisms in a Longwall Face. [PDF]

Sensors (Basel)
Liang M, Lu X, Hong K, Gong H, Huang W, Fan R.   +5 more
europepmc   +1 more source

Evolution and dip effect of boundary spatial morphology of top-coal limit equilibrium zone in steeply dipping coal seam. [PDF]

Sci Rep
Wu X, Chi X, Lang D, Wu Y, Zhang Z, Chen S.   +5 more
europepmc   +1 more source

Research on optimal arrangement strategy of top coal caving support sensors based on vibration characteristics of coal and gangue

Jixie qiangdu
Aiming at the research on intelligent identification of caving coal and gangue, in order to provide a complete and effective vibration signal acquisition scheme of coal and gangue, an optimal layout strategy of tail beam sensors of caving coal hydraulic ...
WANG Yao, YANG Shanguo, WU Mingke, MENG Bin, YANG Zheng, LIU Houguang   +5 more
doaj  

Prediction of hydraulic support pressure in a coal longwall face by integrating multi-head attention and temporal feature learning. [PDF]

Sci Rep
Deng C, Ding Z.
europepmc   +1 more source